Depends on how clean or dirty your water is, how big the skimmer is etc.
Would recommend, even if your fuge light comes on at night,....that if you do do a timer that you run the skimmer at night to help avoid ph swings.
Depends on how clean or dirty your water is, how big the skimmer is etc.
Would recommend, even if your fuge light comes on at night,....that if you do do a timer that you run the skimmer at night to help avoid ph swings.